Airtac SED Double Rod Cylinder SED80X85S
The AirTAC Airtac SED Double Rod Cylinder SED80X85S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø25mm piston rod exits BOTH ends of the Ø80mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 85mm, PT3/8 ports, adjustable cushioning.
- BoreØ80 mm
- Stroke85 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED80X85S
The AirTAC SED80X85S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 25mm rod exiting both end covers. Because the annulus area is identical on both sides, it generates an equal 2268 N of drive force in both extend and retract directions at 0.5 MPa. The extruded aluminum barrel eliminates external tie rods for a clean, modern profile.
Equipped with a standard magnet (-S), this 80mm bore unit supports CMSE reed and DMSE electronic sensors for dual-end position tracking. Field-adjustable air cushions at both ends decelerate the load near stroke limits, while the rear rod end provides excellent anti-rotation guidance or can drive a secondary mechanism.
Airtac SED Double Rod Cylinder SED80X85S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED80X85S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C (0–150 °C with FKM seals) |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SED datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 kgf |
Because a rod exits both ends, the effective piston area — and therefore the force — is identical on extend and retract. Actual usable force is lower than theoretical; size with a safety margin.
Model Code: Airtac SED Double Rod Cylinder SED80X85S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting (SED): Basic, LB, FA, TC, FTC, TCM1, TCM2. Related: SE (single rod), SEJ (double-rod adjustable stroke), BSED (double-rod rod lock).
Where the Airtac SED Double Rod Cylinder SED80X85S Is Used
Servo Press Platen
Drives a CNC press platen requiring 2268 N of perfectly balanced force both ways, using the rear rod for a mechanical depth-limit cam.
Glass Panel Transfer
Indexes delicate glass panels between stations, leveraging the twin 25mm rods to prevent yawing and maintain strict parallelism under load.
Textile Web Guiding
Actuates a web-guiding blade in textile machinery where equal tensioning force is critical in both directions to avoid fabric distortion.
Is the Airtac SED Double Rod Cylinder SED80X85S the Right Cylinder?
Select this 80mm bore when an application requires 2268 N of equal both-way force at 0.5 MPa. If you need less force, the 63mm bore provides 1402 N; if you need more, stepping up to the 100mm bore yields 3681 N. Choose this double-rod SED over a single-rod SE when you need superior anti-rotation resistance, rear-rod tooling mounting, or identical push and pull dynamics.
For ISO 15552 drop-in replacements, match the 85mm stroke, PT3/8 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that a plain SED does not hold position on air loss; for fail-safe holding, consider a BSED double-rod rod lock cylinder or an external pilot-operated check valve.
Quick checklist
- ✓ Equal force/speed both directions needed?
- ✓ Back-rod space for tooling or a flag
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Support both rod ends; avoid side load.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SED Double Rod Cylinder SED80X85S FAQ
Because the double-rod design occupies piston area on both sides, force is equal in both directions. It provides 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and a maximum of 463 kgf at 1.0 MPa.
The twin-rod design ensures identical extend and retract speeds and forces. It also offers better load guidance against rotation and provides a rear rod end that can mount a sensor flag or drive a secondary mechanism.
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